Here is the deal. Doc Reams spoke of "hominy" as helping in cases of low potassium. However, there is a very strong probability he was referring only to hominy made in his day by the old-fashioned method of using the lye (potassium hydroxide) derived from soaking wood ashes in water. It is the same lye you make soap with.
What does the lye treatment do? It softens the husk and facilitates husk removal from corn soaked in it. This white hull-less corn is then either canned or dried and sold as hominy.
Along comes modern science and the lye soak is replaced with a calcium hydroxide soak and/or a mechanical hull removal. That is probably a money-saving procedure, but where is the added potassium we need? That type hominy can do little to help the body keep enough potassium on hand to avoid brain fogginess and actual tumor formation.
Those who have made the plunge and employed a RBTI teacher or who visit a RBTI consultant should be very familiar with this low-potassium risk. Those who have not---well---Reams' book is titled "Choose Life Or Death."
The good news is that a well known RBTI teacher found a modern supplier who still uses the lye soak process. I sometimes have trouble trusting product sellers, so I also conversed with the Teasdale brand spokesperson and came away convinced they really do make hominy the old fashioned potassium hydroxide soak way.
The great news is that Teasdale hominy is available right under your nose. You don't have to spend a fortune getting it shipped to you. Just go down to the Dollar Tree and buy all the large cans you want for a buck each.
The bad news is that I still don't know if the corn that Teasdale buys is GMO or not. So much corn in this country is now GMO that there is a good chance their supply is contaminated.
GMO is a problem for another day so I hope my RBTI friends don't get sidetracked by the GMO issue when Carey Reams' real message is that we need to be sure the body always has a generous potassium supply. Reams also suggested bananas and sardines as potassium sources, but I don't like sardines and day-after-day bananas makes me a dull fellow.
Someone asked about grits, another Reams favorite. Grits can be an important part of a RBTI diet, but my research leads me to believe he would cast a doubtful eye on any grits that were made from anything other than lye-soaked hominy if the purpose was to maintain potassium availability.